<button nz-button (click)="refresh()" nzType="primary">Refresh</button>
<g2-pie
  #pie
  [hasLegend]="true"
  title="销售额"
  subTitle="销售额"
  [total]="total"
  [valueFormat]="format"
  [data]="salesPieData"
  height="294"
  repaint="false"
  (clickItem)="handleClick($event)"
></g2-pie>
